Radiator meter



April 22, 1930. P, P, RBT 1,755,174

RADIATOR METER Filed Febxl6, 192? 2 Sheets-Sheet "1 Jrzzjezzz ar: W 7 I W in April 22 1930. P. P. 'CARBT 1,755,174

RADIATOR METER Filed Feb. 16, 1927 2 Sheets-Sheet 2 Patented Apr. 22,1930 7 UNIT STATE rAUL r. CARIBT, or cnroaeo, ILLINOIS nAnrA'ron ivrnrnn i Application filed February 16, 1927.-J-Seria1 No. 168,713.

This invention frelates'to improvements in radiator meters for automobiles and its object is to provide a simple, efiicient device of this type that is cheap to manufacture. With I the foregoing and other objects in view the invention consists in the combination and arrangenient of parts to be hereinafter fully described particularly pointed out in the appended claim and illustrated in the accompanying drawings which form a part of this applicatio'n and in which' Fig. 1 is a fragmentary viewfof an automobile illustratingthe application of the radiator meter. v

- Fig. 2 is an enlarged fragmentary sectional a sufficiency of the cooling liquid be constant 1y maintained in the circulating system. In the winter season when anti-freeze mixtures V are added they often evaporate and the amount-of cooling liquid necessary is reduced with possible ill eifects to the motor. It is entirely possible that at any time of the year a leak'may drain someor all of the cooling liquid, evaporation may reduce it and, without the drivers knowledge, the cooling liquid 5 may be insufliciently provided.

It is the purpose'of the present invention to avoid this condition and to this end anindicator installed upon the instrument board will i at all times denote the amount of water, or the level thereof, in the radiator.

The reference numeral 1 denotesan automobileproyided with the radiator 2 and hood 3. To the partition 4. beneath the hood I secure a Water box 5lwhich is provided with the supply pipe 6 havingthe control valve 7, said pipe6 leading through the said partition 4 and thereafter being coiled, as at 8, and exvtending'into the watercirculation system so that the water passing from the radiator through the entire circulation system'is also admitted, when the j valve't' fishopen; to the water box.v

IThe top of the water box is substantially on i a level with the topof the radiator and when the Water pump is not inloperationthelevel of-the water in the water box is thesame as" that in the radiator. Within the water box;

is afloat 9 that is "adjustably disposed u on i an angular rod 10"th2 tt'at its uppe'r end is threaded, nuts 12 upon said. rod; serving to securely retain the float in any adjusted position upon the rod The rod; 10] extends outthrough one side ofthe wa ter box, through the gland 13 and into asleeve 1 and terminates 'withina pipe 15 also'dispose'd within said sleeve wherein said pipe 15 is free to rotate, the rod 10' andpipe 15 being connected together b'y the pinilfi, said pipe 15 at oneend' being ;formed'with the slot 17 .to receive the pin 18 of a rod'19 that extends into'the housing 20 imbedded in the dash 21 and through a dial 22 within said housing and at its end carries the indicator 23 that works over the graduations, in fractions of an inch, on the face of the dial, said indicator being visible through the lens 24 of the casing 20. V I I One end of a tubular support 25 for the sleeve 14' is secured to the casing 20. The depth of the water box is known in inches or fractions thereof and also the depth of the denoted by the graduation O on the dial and dium of the float in the Water box, an indicator reading that would tend to go beyond the graduation 8 the float may be adjusted upon its rod 10 until the full radiator position uation8 of the dial.

would cause the indicator to read upon grad- The water box is provided with an air ven I 26 provided with ahinged closure27 that rests upon the float and should the water in the radiator run over or boil over the Water 7 box Would be prevented from doing likewise by the action of the float which would rise until it closed the member 27 against said vent.

Vibration due to operation of the automobile Will not effect the meter or break or strain any of its parts as the conneetions between the. float and indicator are to a certain extent flexible. Thepipe l5 and rod 19 are capable of relative longitudinal movement Without;

separation and the coiled 'portion 8of the pipe 6 contributes a certain flexibility.

What is claimed is The combination With-the ater Circulating. system of an automobile. said system in- V eluding a radiator, of a water box having its top substantially level with that of the radiar. and: Pr vided w th, an a v nt, fl x bl Waterconduit leading from said Water box t awar raeme sys em, fleet in aid wa er blot a lhiee desire er he air ent n aid. Wa er: 0.0. 1 and ner t x ly- $1 19 port d by" a d 2 a, a ra t f la aegsdi the ash i, th w w-b e. at in: ca r mova e Ov t ai e said di d a zuet e mea s .fe aid i ato ntil it id fl ete idmeae wm asine ired ent bet en t eed se as to 'rq de; two arms at anangle to one another, one arm djaet blyr ce leivi e the fipat. and a r tary pipe pin-oonneoted t0 the b l m n ac; mated thereby 1 V In testimo y a c a m h foregoing as my own have h ereto afi ixed my signature; 

